.mask{
	position: fixed;
	width: 100%;
	height: 100%;
	top: 0;
	left: 0;
	background: rgba(0, 0, 0, 0.5);
	z-index: 99;
}
.db_inline{
	display: inline-block;
	vertical-align: middle;
}
.fl{
	float: left;
}
.fr{
	float: right;
}
.oh{
	overflow: hidden;
}

/*排课table样式*/
.schedule_table{
	border: 1px solid #e3e8ee;
}
.schedule_table tr{
	text-align: center;
}
.schedule_table tr th{
	padding: 10px;
	background-color: #f5f7f9;
}
.schedule_table tr th, .schedule_table tr td{
	font-size: 12px;
	color: #657180;
	border-right: 1px solid #e3e8ee;
}
.schedule_table tr td{
	border-top: 1px solid #e3e8ee;
}
.schedule_table tr th:last-child, .schedule_table tr td:last-child{
	border-right: none;
}
.schedule_table tr th:last-child{
	min-width: 150px;
}
.schedule_table tr:hover{
  background-color: #ebf7ff;
}